package com.bwie.gateway;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.util.concurrent.TimeUnit;

/**
 * @description:
 * @author: zyh
 * @create: 2024-10-24 08:40
 **/
@Component
public class GatewayFilter implements GlobalFilter, Ordered {
     @Autowired
     private StringRedisTemplate stringRedisTemplate;


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();

        String[] strings = new String[]{"/user/login"};

        String s = request.getPath().toString();
        for (int i = 0; i < strings.length; i++) {
            if(s.contains(strings[i])){
                return chain.filter(exchange);
            }
        }

        String token = request.getHeaders().getFirst("token");
        if(StringUtils.isEmpty(token)){
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }else{
            stringRedisTemplate.opsForValue().set("token",token,5, TimeUnit.MINUTES);

        }


        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
